[Samba] PANIC: Signal 11: Segmentation fault in 4.15.2-Debian

spindles seven spindles7 at gmail.com
Tue Nov 23 19:01:23 UTC 2021


Having upgraded a member server to version 4.15.2, I am now getting these errors in syslog:

Nov 23 09:06:23 lxd-m1 smbd[94253]: [2021/11/23 09:06:23.537208,  0] ../../lib/util/fault.c:172(smb_panic_log)
Nov 23 09:06:23 lxd-m1 smbd[94253]:   ===============================================================
Nov 23 09:06:23 lxd-m1 smbd[94253]: [2021/11/23 09:06:23.537278,  0] ../../lib/util/fault.c:173(smb_panic_log)
Nov 23 09:06:23 lxd-m1 smbd[94253]:   INTERNAL ERROR: Signal 11: Segmentation fault in pid 94253 (4.15.2-Debian)
Nov 23 09:06:23 lxd-m1 smbd[94253]: [2021/11/23 09:06:23.537305,  0] ../../lib/util/fault.c:177(smb_panic_log)
Nov 23 09:06:23 lxd-m1 smbd[94253]:   If you are running a recent Samba version, and if you think this problem is not yet fixed in the latest versions, please consider reporting this bug, see https://wiki.samba.org/index.php/Bug_Reporting
Nov 23 09:06:23 lxd-m1 smbd[94253]: [2021/11/23 09:06:23.537336,  0] ../../lib/util/fault.c:182(smb_panic_log)
Nov 23 09:06:23 lxd-m1 smbd[94253]:   ===============================================================
Nov 23 09:06:23 lxd-m1 smbd[94253]: [2021/11/23 09:06:23.537360,  0] ../../lib/util/fault.c:183(smb_panic_log)
Nov 23 09:06:23 lxd-m1 smbd[94253]:   PANIC (pid 94253): Signal 11: Segmentation fault in 4.15.2-Debian
Nov 23 09:06:23 lxd-m1 smbd[94253]: [2021/11/23 09:06:23.539789,  0] ../../lib/util/fault.c:287(log_stack_trace)
Nov 23 09:06:23 lxd-m1 smbd[94253]:   BACKTRACE: 29 stack frames:
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #0 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(log_stack_trace+0x30) [0x7f4cbe3c7d40]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #1 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x9) [0x7f4cbe3c7f89]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(+0x10021) [0x7f4cbe3c8021]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #3 /lib/x86_64-linux-gnu/libpthread.so.0(+0x14140) [0x7f4cbdfcc140]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #4 /usr/lib/x86_64-linux-gnu/libtalloc.so.2(+0x47dd) [0x7f4cbdfe47dd]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #5 /usr/lib/x86_64-linux-gnu/libtalloc.so.2(+0x4608) [0x7f4cbdfe4608]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #6 /usr/lib/x86_64-linux-gnu/libtalloc.so.2(+0x4608) [0x7f4cbdfe4608]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #7 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x19c5a6) [0x7f4cbe5d45a6]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_done_ex+0xa6c) [0x7f4cbe5da53c]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_error_ex+0xb5) [0x7f4cbe5d5f45]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1b5b4d) [0x7f4cbe5edb4d]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #11 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_invoke_immediate_handler+0x192) [0x7f4cbdf97f52]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #12 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_immediate+0x1a) [0x7f4cbdf97f7a]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #13 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xdd1c) [0x7f4cbdf9dd1c]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #14 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xc087) [0x7f4cbdf9c087]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #15 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x94) [0x7f4cbdf96e24]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #16 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7f4cbdf9710b]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #17 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xc027) [0x7f4cbdf9c027]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #18 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x840) [0x7f4cbe5c60c0]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #19 /usr/sbin/smbd(+0xd5a5) [0x55ba63e695a5]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #20 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_invoke_fd_handler+0x91) [0x7f4cbdf979e1]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #21 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xdf47) [0x7f4cbdf9df47]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #22 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xc087) [0x7f4cbdf9c087]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #23 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x94) [0x7f4cbdf96e24]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #24 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7f4cbdf9710b]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #25 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xc027) [0x7f4cbdf9c027]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #26 /usr/sbin/smbd(main+0x1e47) [0x55ba63e64e97]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #27 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea) [0x7f4cbddeed0a]
Nov 23 09:06:23 lxd-m1 smbd[94253]:    #28 /usr/sbin/smbd(_start+0x2a) [0x55ba63e64fea]
Nov 23 09:06:23 lxd-m1 smbd[94253]: [2021/11/23 09:06:23.540116,  0] ../../source3/lib/dumpcore.c:315(dump_core)
Nov 23 09:06:23 lxd-m1 smbd[94253]:   dumping core in /var/log/samba/cores/smbd
Nov 23 09:06:23 lxd-m1 smbd[94253]: 
Nov 23 09:06:23 lxd-m1 smbd[95777]: [2021/11/23 09:06:23.574519,  0] ../../lib/dbwrap/dbwrap.c:82(dbwrap_record_get_value)
Nov 23 09:06:23 lxd-m1 smbd[95777]:   PANIC: assert failed at ../../lib/dbwrap/dbwrap.c(82): rec->value_valid
Nov 23 09:06:23 lxd-m1 smbd[95777]: [2021/11/23 09:06:23.576268,  0] ../../lib/util/fault.c:172(smb_panic_log)
Nov 23 09:06:23 lxd-m1 smbd[95777]:   ===============================================================
Nov 23 09:06:23 lxd-m1 smbd[95777]: [2021/11/23 09:06:23.576307,  0] ../../lib/util/fault.c:173(smb_panic_log)
Nov 23 09:06:23 lxd-m1 smbd[95777]:   INTERNAL ERROR: assert failed: rec->value_valid in pid 95777 (4.15.2-Debian)
Nov 23 09:06:23 lxd-m1 smbd[95777]: [2021/11/23 09:06:23.576332,  0] ../../lib/util/fault.c:177(smb_panic_log)
Nov 23 09:06:23 lxd-m1 smbd[95777]:   If you are running a recent Samba version, and if you think this problem is not yet fixed in the latest versions, please consider reporting this bug, see https://wiki.samba.org/index.php/Bug_Reporting
Nov 23 09:06:23 lxd-m1 smbd[95777]: [2021/11/23 09:06:23.576357,  0] ../../lib/util/fault.c:182(smb_panic_log)
Nov 23 09:06:23 lxd-m1 smbd[95777]:   ===============================================================
Nov 23 09:06:23 lxd-m1 smbd[95777]: [2021/11/23 09:06:23.576380,  0] ../../lib/util/fault.c:183(smb_panic_log)
Nov 23 09:06:23 lxd-m1 smbd[95777]:   PANIC (pid 95777): assert failed: rec->value_valid in 4.15.2-Debian
Nov 23 09:06:23 lxd-m1 smbd[95777]: [2021/11/23 09:06:23.576911,  0] ../../lib/util/fault.c:287(log_stack_trace)
Nov 23 09:06:23 lxd-m1 smbd[95777]:   BACKTRACE: 27 stack frames:
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #0 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(log_stack_trace+0x30) [0x7f4cbe3c7d40]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #1 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x9) [0x7f4cbe3c7f89]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #2 /usr/lib/x86_64-linux-gnu/samba/libdbwrap.so.0(dbwrap_record_get_value+0x27) [0x7f4cbdcd3997]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #3 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1bb37a) [0x7f4cbe5f337a]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #4 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb2srv_client_mc_negprot_send+0x6b) [0x7f4cbe5f437b]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #5 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_negprot+0xae8) [0x7f4cbe5dc068]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #6 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0x1d8c) [0x7f4cbe5d869c]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #7 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_process_negprot+0x222) [0x7f4cbe5dad52]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x18b803) [0x7f4cbe5c3803]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x18c9f6) [0x7f4cbe5c49f6]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #10 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_invoke_fd_handler+0x91) [0x7f4cbdf979e1]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #11 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xdf47) [0x7f4cbdf9df47]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #12 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xc087) [0x7f4cbdf9c087]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #13 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x94) [0x7f4cbdf96e24]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #14 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7f4cbdf9710b]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #15 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xc027) [0x7f4cbdf9c027]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #16 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x840) [0x7f4cbe5c60c0]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #17 /usr/sbin/smbd(+0xd5a5) [0x55ba63e695a5]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #18 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_invoke_fd_handler+0x91) [0x7f4cbdf979e1]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #19 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xdf47) [0x7f4cbdf9df47]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #20 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xc087) [0x7f4cbdf9c087]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #21 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x94) [0x7f4cbdf96e24]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #22 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7f4cbdf9710b]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #23 /usr/lib/x86_64-linux-gnu/libtevent.so.0(+0xc027) [0x7f4cbdf9c027]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #24 /usr/sbin/smbd(main+0x1e47) [0x55ba63e64e97]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #25 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea) [0x7f4cbddeed0a]
Nov 23 09:06:23 lxd-m1 smbd[95777]:    #26 /usr/sbin/smbd(_start+0x2a) [0x55ba63e64fea]
Nov 23 09:06:23 lxd-m1 smbd[95777]: [2021/11/23 09:06:23.577281,  0] ../../source3/lib/dumpcore.c:315(dump_core)
Nov 23 09:06:23 lxd-m1 smbd[95777]:   dumping core in /var/log/samba/cores/smbd
Nov 23 09:06:23 lxd-m1 smbd[95777]:

The platform is Debian Bullseye and I am using Louis' repo.  Other member servers running the same version are, at the moment, not seeing these failures.   Is this a know bug, or shall I create one?

Regards,

Roy Eastwood




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